baber/WOPTO huggingface dataset:
Patent GB-428459-A (GB)
Title: A television optical system for increasing the number of scanning strips obtained from a mirror drum for transmission or reception
IPC: H04N3/08
Filed: 1933-11-09
Abstract: 428,459. Television. RICHARDSON, H. A., Darley House, Marlboro Road, Buxton, Derbyshire. Nov. 9, 1933, Nos. 31194/33, 766/34, and 7237/34. [Class 40 (iii)] In a scanning system, a beam of light is traversed across a series of reflecting concave or convex surfaces or refracting surfaces to produce a series of scanning lines which are correctly located on the screen by individual reflectors or refractors. A mirror drum MD, (Fig. 1, Prov. Spec. 766 /34), traverses a beam of light over lenses L1 .... L8 and plane mirrors M1 ... M8 correctly locate the strips on the screen SC. The mirror drum MD has its mirrors inclined at different angles, so that the total number of scanning strips produced is the number of lenses L1 ... L8 multiplied by the number of mirrors on the drum. The mirrors M, MC may be dispensed with, (Fig. 7, Prov. Spec. 7237/34 and Figs. 1, 2, Prov. Spec. 31194/33, not shown), or replaced by a concave mirror behind the drum MD, (Fig. 10, Prov. Spec. 7237/34, not shown). Synchronizing impulses may be produced by apertured screens suitably placed, e.g. before the lenses L1 .... L8, (Fig. 6, Prov. Spec. 31194/33, not shown). The convex lenses L1 ... L8 may be replaced by concave lenses, (Fig. 2, Prov. Spec. 7237/34, not shown and Fig. 11, Comp. Spec., not shown) ; by concave mirrors, (Figs. 3, 9, Prov. Spec. 7237 /34, not shown), by convex mirrors, (Fig. 4, Prov. Spec. 7237/34, not shown) ; by prisms (Figs. 1 ... 4, Comp. Spec., not shown) ; or by combinations of lenses and prisms, (Figs. 5, 6, 11, 12, Prov. Spec. 7237/34, not shown). A rotating mirror may replace the mirror drum, the lenses L1 ... L8 being arranged in a circle round the mirror, (Fig. 8, Prov. Spec. 7237/34, not shown). The strips from the elements L1 ... L8 may be traversed over a further set of strip - generators to increase the number of scanning strips, (Figs. 6 ... 12, Comp. Spec., not shown). The elements L1 ... L8 may be arranged in a plurality of rows, the light being traversed over each row in turn by separate mirrors co-operating with one mirror drum, (Fig. 5, Comp. Spec., not shown). Reference has been directed by the Comptroller to Specifications 373,539, 373,540, and 374,564.
Patent GB-1048422-A (GB)
Title: Agricultural tractors
IPC: A01B63/111
Filed: 1963-08-08
Abstract: 1,048,422. Automatic control of vehicles. INSTITUT ZA MEHANIZACIJU POLJOPRIVREDE N.R.S. Aug. 8, 1963 [Aug. 11, 1962], No. 31293/63. Heading B7H. A tractor is provided with means to compare the peripheral speeds of a sensing wheel and the driving wheels or tracks and hence to alter the depth and draught load of a tractor borne implement to keep slip within a predetermined limit. In Fig. 1 wheel 13 drives a shaft 6 on which is mounted member 5 with an external helical thread engaged by gear 3 driven by gearwheel 1 secured to tractor drive shaft 2. On slipping of the tractor wheels or tracks gear 3 moves axially on member 5 moving lever 15 to adjust the draught load. At the limits of its travel gear 3 engages springs 17 on end plates 16 and the spring-loaded balls 9 rise from the depressions 8 in shaft 6 to act as a clutch and disconnect member 5 from shaft 6 thus preventing damage to the device. In a modification (Fig. 2, not shown) gear 3 disengages from a threaded portion of shaft 6 when the velocity ratio remains incorrect, springs 17 returning the gear 3 when the correct ratio is regained. Alternatively (Fig. 3, not shown) the ground wheel 9 and tractor shaft 2 respectively drive the ring gear 6 and planet carrier of a planetary gear the sun-wheel of which drives a clutch controlled hydraulic pump 13 to displace fluid in cylinder 15<SP>1</SP> to control the position of piston 14<SP>1</SP> and hence the draught load. The inputs from the ground wheel and drive shaft may alternatively drive a differential gear the camshaped casing of which engages a control lever (Figs. 5, 5a, not shown).
Patent GB-1027324-A (GB)
Title: Sized glass fibre material
IPC: C03C25/325
Filed: 1964-08-04
Abstract: Glass fibres are sized by applying thereto a linear polycarbonate having a molecular weight above 10,000.  The polycarbonate is preferably one prepared from an aromatic dihydroxy compound preferably a bisphenylol-alkane, -cycloalkene, - ether, -sulphide, -sulphane or sulphide or a mixture of aromatic and aliphatic or cycloaliphatic dihydroxy compounds. Polycarbonates or mixed polycarbonates produced wholly or partially from B-alkenyl-substituted aromatic dihydroxy compounds, e.g. mono-and diallyl-and-methallyl-hydroquinone 3-mono-and 3, 31-diallyl-and-methallyl-4, 41-di-hydroxy diphenyl and the 3-mono-and 3, 31-diallyl-and-methallyl compounds of bio-(4-diphenylol)-methane, -ethane, -propane, -butene, cyclohexane, ether, sulphide, sulphoxide or sulphane, may be used. 0.5-5% by weight solutions or emulsions of the polycarbonates in benzene, toluene, xylene, methylene chloride, ethylene chloride, chloroform or carbon tetrachloride possibly with the addition of mono-or dichloro-benzene or aniode, or aqueous dispersions of the polycarbonates may be applied to the fibres during their production, after burning off a chromium complex size or after coating with a butadiene-styrene copolymer size.
Patent GB-534780-A (GB)
Title: Improvements in and relating to the extraction of palm oil and similar vegetable oils
IPC: C11B1/00
Filed: 1939-12-01
Abstract: 534,780. Extracting fats and oils. NYROP, A. Dec. 1, 1939, No. 31296. [Class 91] In a process for extracting palm oil or similar vegetable oils, coarsely strained liquor from presses or other means of expulsion is decanted whilst slowly and continuously flowing through one or more narrow closed tanks, or wide tanks with vertical partitions, from which the oil decanted flows through a discharge at the top, whereas the subnatant liquor or emulsion consisting of sludge, water and oil is drawn from the bottom of the tank through a liquor seal situated as remote as possible from the inlet, so as to maintain the tank filled and avoid the admission of air, and is conveyed to a vessel in which it is heated to a temperature above 90‹C. and thereupon strained and treated in a centrifugal separator, which may be of the kind described in Specification 497,547, for the recovery of oil.
Patent GB-1018649-A (GB)
Title: Process for producing flaked sodium metaborate compositions
IPC: C01B35/10
Filed: 1964-08-04
Abstract: Solid, flaked sodium metaborate, Na2B2O4, having at least 3.5, e.g. up to 8 moles of water of hydration is produced by mixing sodium tetraborate, Na2B4O7, and NaOH in the molar ratio of 1 : 2 with sufficient water to form the required hydrate; heating to 75-105 DEG C.; and feeding the plastic mass to a cooled drum flaker.  The tetraborate may have 2, 4, 5, 8 or 10 moles of water of hydration; when the pentahydrate is used, 1-5 moles of free water per mole borate are required. The NaOH is dissolved in the added water (giving e.g. a 50-70% solution).  A double drum flaker with a drum clearance of 0.97-1.59 mm., rotating at 5-12 r.p.m., may be used, the drum surface being cooled to below 50 DEG  C., e.g. 10-35 DEG  C., by circulating water on the inside.  15-60% of sodium chlorate may be mixed with the tetraborate to give a co-crystallized sodium metaborate-chlorate composition.ALSO:A herbicidal composition consists of solid flaked sodium metaborate (see Division C1) and 15-60% sodium chlorate co-crystallised with the metaborate, optionally together with 0.25-18% organic herbicides, e.g. 5-bromo-3-sec. butyl-6-methyl uracil, aminotriazole, dichloropropionic acid, halophenoxyacetic acids, or triazines.
Patent GB-892513-A (GB)
Title: Improvements in or relating to gas turbine plants
IPC: F02C7/00
Filed: 1958-10-01
Abstract: 892,513. Gas turbine plant. BROWN, BOVERI & CIE A.G. Oct. 1, 1958 [Oct. 1, 1957], No. 31360/58. Class 110 (3). A gas turbine plant comprises a reverse turbine located in the same casing as a forward turbine the two turbines having a common outlet, and channel means for the gas leaving the reverse turbine and moving to the outlet, the channel means being so arranged that the gas leaving the reverse turbine will flow in an axial and a centripetal direction and afterwards in an axial and centrifugal direction. The channel is formed by an extension 5, Fig. 1, of the guide blade carrier and a semi-circular groove 3 in the rotor shaft 11. The rotor shaft has a slight concave intermediate part 12 to direct the exhaust gases across the mouth of the channel 4. In Fig. 3 the rotor shaft is cylindrical and a diverter piece 8 is fitted which has the same curvature as the shaft part 12. The diverter piece 8 may be fixed to the extension 5 by supports 9 or suitably fixed to the shaft. In another form, a guard is provided on the diverter piece to prolong the diffuser formed by the exhaust channel 6 of the ahead turbine and the exhaust gases from the astern turbine are thereby emitted parallel to and in the same sense as the gases from the forward turbine.
Patent GB-1211615-A (GB)
Title: Girders
Inventor: YANAI HIDEO
IPC: E04C3/34
Filed: 1968-07-02
Abstract: 1,211,615. Girders. H. YANAI. 2 July, 1968 [3 July, 1967], No. 31530/68. Headings E1G and E1W. A girder is comprised by an outer pipe 1 divided into at least two longitudinally extending spaces by an inner member 2 which in one example is a pipe and in another, Fig. 6 (not shown) is of V-section, in linear contact with the outer pipe over at least part of the length thereof, one of the spaces in the pipe being filled with concrete 4 which absorbs compression due to bending load. The relative positions of the inner member and the mass of concrete may be inverted on opposite sides of the points D of contraflexure of bending moment. A bridge, Fig. 7, comprises girders according to the invention arranged side-byside as in Fig. 8 (not shown) to span between a pairs of piers 5 on which the ends of the girders are located and where they are welded between steel plates 7, 8. A pavement 9 is applied over the girders and plates 8.
Patent GB-349887-A (GB)
Title: Improvements in or relating to automatically focussing photographic projection apparatus for printing and like purposes
IPC: G03B27/36
Filed: 1930-10-21
Abstract: 349,887. Photographic projection printing apparatus. KODAK, Ltd., Kodak House, Kingsway, London.-(Assignees of Riddell, W. A. ; 333, State Street, Rochester, New York, U.S.A.) Oct. 21, 1930, No. 31552. Convention date, Oct. 22, 1929. [Class 98 (i).] In a photographic enlarging apparatus of the type in which the focus is automatically maintained over the range of enlargement or reduction by a stationary cam mounted on guides on which the camera slides, a pair of gear wheels are provided on the camera body, one of which bears on the cam whilst the other is connected,by a lever and link to the lens carriage. In the form shown, the cam plate 22 is mounted on the guide 4 by members 25 enabling the position of the plate to be adjusted. The camera body 6 slides on the guide 4 and carries a toothed segment 30 having a roller 34 engaging the cam surface and meshing with a pinion 35 connected by the levers 37, 38 to the support 5 for the lens carriage. The point of attachment of the lever 38 to the support 5 is adjustable by the set-screw 40. By adjusting this point and moving the cam plate the apparatus may be adapted for use with lenses of different focal lengths.
Patent GB-465785-A (GB)
Title: Improvements in or relating to wrappings for toffee or the like
IPC: B65D75/38
Filed: 1935-11-14
Abstract: 465,785. Packages. SPICER, J. L. Nov. 14, 1935, Nos. 31570 and 33060. [Class 94 (i)] Packets of toffee and like sweetmeats are formed by applying first a plain opaque paper waxed on one side only with the waxed side inwards, and adding a coloured and ornamented translucent outer wrapper The understrip consists of a body paper made without fillers, and either white or of a light colour, and the outer wrapper is of glazed imitation parchment made by calendering and ornamenting and waxing on both sides. Specification 255,289, [Class 94 (i)], is referred to.
Patent GB-1017872-A (GB)
Title: Method and apparatus for coating thermoplastic surfaces and articles produced thereby
Inventor: MERRILL RICHARD ELLSWORTH
IPC: D21H19/06
Filed: 1962-08-17
Abstract: Threads, e.g. of nylon or rayon, may be coated with a thermoplastic resin having a Brookfield viscosity of at least 1,000 centipoises at 300 DEG F. and thereafter coated with solid particles, e.g. metal flakes, metal powders or pigments by applying the particles to the thermoplastic surface while in its p  normal, non-tacky solid condition to the extent that at least 10% of the surface is covered and thereafter heating to convert the surface to a highly viscous liquid state and allowing the surface to cool to produce a lustrous surface to which the particles are firmly bonded.  Suitable thermoplastic material is polyethylene, acrylic resins, polyamides, polyvinyl butyrals, polyvinyl formals, polyvinyl acetates and copolymers thereof with vinyl chloride, ethyl cellulose, polystyrene and styrenebutadiene copolymers.  These may be applied to the substrate by any suitable method giving a lustrous surface, e.g. hot melt coating, or solution coating.  Specified particulate materials are aluminium, copper, bronze and zinc powders and pigments, e.g. ultramarine blue.  After the application of the particles, the article may subsequently be given a transparent protective coating, e.g. of nitrocellulose lacquer.ALSO:Thermoplastic materials having a Brookfield viscosity of at least 1000 centipoises at 300  DEG F., especially in sheet form, are coated with solid particles, e.g. metal flakes, metal powders or pigments, by applying the particles to the surface of the material while in its normal, non-tacky solid condition to the extent that at least 10% of the surface is covered and thereafter heating to convert the surface to a highly viscous liquid state and allowing the surface to cool to produce a lustrous surface to which the particles are firmly bonded.  Suitable thermoplastic material is polyethylene which may be present as a film on a substrate, e.g. paper, wood, cloth or regenerated cellulose. Others mentioned are acrylic resins, polyamides, polyvinyl butyrals, polyvinyl formals, polyvinyl acetates and copolymers thereof with vinyl chloride, ethyl cellulose, polystyrene and styrene/butadiene copolymers.  These may be applied to the substrate by any suitable method giving a lustrous surface, e.g. hot melt coating, calendering, extruding or solution coating.  Specified particulate materials are aluminium, copper, bronze and zinc powders and pigments, e.g. ultramarine blue.  After the application of the particles, the material may be calendered and may subsequently be given a transparent protective coating, e.g. of nitro-cellulose lacquer.  The surface may also be given a decorative effect, e.g. by drawing the material over a wire-wound surfacing bar or by embossing before or immediately after the application of the particles. p
Patent GB-802262-A (GB)
Title: Improvements in or relating to transistors and to methods of producing the same
Inventor: FULLER DENNIS QUINTRELL
IPC: H01L29/00
Filed: 1954-11-02
Abstract: 802,262. Semi-conductor devices. PYE, Ltd. Oct. 24, 1955 [Nov. 2, 1954], No. 31663/54. Class 37. A semi-conductor wafer for use in a transistor is formed with a pair of grooves, one on each face, which intersect to give an area of reduced thickness. The grooves preferably extend the full width of their respective faces, are preferably flat-bottomed at least at the intersection, and preferably are mutually perpendicular. They may be cut with a diamond impregnated disc. A junction transistor is made by fusing alloy-type emitter and collector electrodes to opposite sides of the wafer at the intersection. A connection may be made to either of these electrodes, e.g. 8 (Fig. 2), by suspending a tinned wire 6 between supports 7 so as to extend along the respective groove 3 without touching the sides but in contact with the electrode, and passing current along it to solder it to the electrodes. A strip base electrode may be attached to the wafer.
Patent GB-1415302-A (GB)
Title: Viscosity measuring apparatus
IPC: G01N11/14
Filed: 1972-07-06
Abstract: 1415302 Measuring viscosity MARCONI CO Ltd 9 May 1973 [6 July 1972] 31661/72 Headings G1A and G1S Apparatus for determining the viscosity of a heated sample comprises a first member supported by a torsion wire from a rotating member, a fixed member beneath the first member, the first and fixed members having planar spaced surfaces between which the sample is introduced, photoelectric means for measuring the relative lag between the first member and the rotating member and means for controllably heating the sample. As shown, Fig.1, a sample of resin is introduced between a bed-plate 10 and a disc 9 suspended by means of a torsion wire 6 from a cage arrangement I which is rotated at constant speed. The plate 10 is subjected to a heating cycle and the disc 9 is caused to lag behind the rotation of cage 1 due to the viscosity of the sample. The position of shaft 5 carrying disc 9 relative to cage 1 is determined by means of a uniformly graded density film 12 observed by a lamp 14 and a photodiode 16 attached to the cage. The output of the photodiode may be applied to a pen recorder so that the time in the heating cycle at which the sample reaches minimum viscosity can be determined. Alternatively if the value of the detector output for minimum viscosity is known the measurement can be made simultaneously with a bonding process and the output of the detector used directly to control the application of increased bonding pressure.
Patent GB-1299068-A (GB)
Title: Vacuum apparatus
Inventor: OWEN DAVE L
IPC: B65B31/06
Filed: 1970-07-01
Abstract: 1299068 Valves W R GRACE & CO 1 July 1970 [25 July 1969 (2)] 31957/70 Heading F2V [Also in Division B8] In a vacuum packing apparatus for poultry a nozzle 15, which is inserted into a plastics bag containing a bird, has a seat 63 at its upper end engaging a rounded end 45 of a valve member that is guided in a tube 12 with a branch 14 connected to a vacuum source. The seat 63 is biased towards the valve member by a spring 56 acting between a split ring 42 mounted in a groove of the suction tube 12 and a shoulder 55 of a slide tube 34 which is connected to the nozzle. Channels 46 in the valve member allow suction to be applied to the nozzle when the slide tube 34 is forced downwards against the spring-loading to move seat 63 away from the valve member. The plastics bag is drawn about the bird by the vacuum and is then moved laterally while withdrawing the nozzle by flexing a tube 13 connected to the end of the suction tube 12 to position the neck in the jaws 22 of a clipper. The bag's neck is severed above the clip and the bag falls on to a conveyer for transfer to, for example, a shrink tunnel. The nozzle tip which has lateral ports 76 and a sump 77  may be replaced by a tip 120 with lateral slots 121 having inclined ends 122 to facilitate removal of debris therefrom on movement of the nozzle relative to the bag and product, e.g. corned beef. An alternative form of nozzle 82 may be used and comprises lateral ports 85 which extend across the face of enlarged part 84 in the form of channels. End plate 89 prevents any debris from being forced into the nozzle bore.
Patent GB-986948-A (GB)
Title: A speed controller for toys, particularly for miniature railways
Inventor: SCHMITZ HEINZ
IPC: A63H19/24
Filed: 1963-08-13
Abstract: 986,948. Variable resistors. ROKAL G.m.b.H. Aug. 13, 1963, No. 31961/63. Heading H1S. [Also in Division H2] A speed controller for toys includes a bimetallic wiper arm 12 bearing resiliently against a wire-wound resistor 4 from which the arm disengages upon a predetermined temperature being reached, i.e. when resistor 4 heats up to an extent corresponding to an overload of a rectifier 14 in the circuit.
Patent GB-1360165-A (GB)
Title: Thermoplastic resin composition
IPC: C08L25/02
Filed: 1972-07-07
Abstract: 1360165 Polyphenylene ether/polystyrene/ polycarbonate blends MITSUBISHI GAS CHEMICAL CO Inc 7 July 1972 [9 July 1971] 31999/72 Headings C3P and C3R A thermoplastic blend comprises (A) 15- 80% by wt. of a polyphenylene ether having recurring units of the formula wherein R 1  and R 2  may be the same or different, and are methyl or ethyl; (B) 5-60% by wt. of one or more styrene resins containing at least 70% of units derived from a compound within the general formula where R 3  is H or a C 1-4  alkyl group, X is H or Cl, or Br, and m is 1 or 2; and (c) 2-60% by wt. of an aromatic polycarbonate composed of recurring units of general formula wherein R 4  and R 5  may be the same or different and are as defined for R 3  and X and m are as defined above, the total of (A), (B) and (C) being 100%. Polyphenylene ethers specified are poly-(2,6-dimethyl-1,4-phenylene) ether, poly- (2-methyl-6-ethyl-1,4-phenylene) ether, and poly-(2,6-diethyl-1,4-phenylene) ether. The styrene resin includes copolymers, high impact polystyrenes, poly-α-methyl styrene, polychlorostyrene, polystyrene/acrylonitrile, polystyrene butadiene), poly-(styrene/bromostyrene) and poly-(styrene/chlorostyrene) and mixtures thereof. The polycarbonate, which may be obtained in the usual way from a diphenol and phosgene, a haloformate or carbonate ester, may be derived from such dihydric phenols as 2,2-bis-(4- hydroxy phenyl) propane-(bisphenol A), 2,2- bis-(4-hydroxyphenyl) butane (bisphenol B), 2,2 - bis - (4-hydroxyphenyl)pentane, 2,4<SP>1</SP> - dihydroxydiphenyl methane, bis-(2-hydroxyphenyl) methane, bis-(4-hydroxyphenyl) methane, 2,2- bis-(3,5-dichloro-4-hydroxyphenyl) propane, 2,2- bis - (3,5 - dibromo-4 - hydroxyphenyl) propane, and bis - (3,5 - dichloro - 4 - hydroxyphenyl) methane. The blend may be produced by mixing solutions of the polymers and coprecipi. tating, kneading the solids on a roll, or mixing powders or pellets and melt extruding. Other conventional additives such as pigments, stabilizers, plasticizers, U.V. absorbers, lubricants may also be present. Examples utilize polymers selected from those specified above.
Patent GB-447878-A (GB)
Title: Improvements in and relating to the valve control of multi-cylinder engines
IPC: F02F1/42
Filed: 1935-11-19
Abstract: 447,878. Valve gear. SOC. ANON. A. SAURER, Arbon, Switzerland. Nov. 19, 1935, No. 32013. Convention date, Nov. 4. [Class 7 (vi)] In multi-cylinder engines having pairs of inlet valves 5 and exhaust valves 6 to each of several cylinders arranged in a line, the valves are actuated by corresponding pairs of levers mounted on separate shafts extending transversely of the engine. The Figure shows two inlet valves 5 actuated by arms 15 on a cross-shaft 11, which carries a further arm 21 actuated by a push rod 31. Similarly, two exhaust valves 6 are actuated by arms 16 on a second cross-shaft 12 with a further arm 22 and push rod 32. The two shafts 11, 12 of adjacent cylinders are mounted in common bearings 13, 14. The arms 21 is curved over the shaft 12, while the arm 22 is clear of the end of the shaft 11.